Unmanned aerial vehicle



FIG. 1 is a top, left, front perspective view of an unmanned aerial vehicle showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of portions of the unmanned aerial vehicle depicts environment and forms no part of the claim. 

CLAIM The ornamental design for an unmanned aerial vehicle, as shown and described. 